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Z-Asn-ONp

CAS No.
3256-57-3
Chemical Name:
Z-Asn-ONp
Synonyms
Z-Asn-ONp;Z-L-Asn-ONp;CBZ-L-Asn-ONp;Z-ASPARAGINE-ONP;Z-ASN-ONP USP/EP/BP;Z-L-ASPARAGINE 4-NITROPHENYL ESTER;Z-L-ASPARAGINE P-NITROPHENYL ESTER;CBZ-L-ASPARAGINE-4-NITROPHENYL ESTER;Nα-Z-L-asparagine 4-nitrophenyl ester;N-CBZ-L-ASPARAGINE-P-NITROPHENYL ESTER
CBNumber:
CB1255171
Molecular Formula:
C18H17N3O7
Molecular Weight:
387.34
MDL Number:
MFCD00024661
MOL File:
3256-57-3.mol
MSDS File:
SDS
Last updated:2026-09-12 18:49:06

Z-Asn-ONp Properties

Boiling point 688.3±55.0 °C(Predicted)
Density 1.387
storage temp. 2-8°C
pka 10.36±0.46(Predicted)

SAFETY

Risk and Safety Statements

WGK Germany  3
8

Z-Asn-ONp price More Price(16)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
Usbiological 260528 N-alpha-Z-L-asparagine 4-nitrophenyl ester Asreported 3256-57-3 25g $333 2026-06-03 Buy
ChemScene CS-0113342 Z-Asn-ONp ≥98% 3256-57-3 100g $808 2026-06-04 Buy
Chem-Impex 02146 Nα-Z-L-asparagine 4-nitrophenyl ester ≥98% 3256-57-3 5G $18.5 2026-05-19 Buy
Chem-Impex 02146 Nα-Z-L-asparagine 4-nitrophenyl ester ≥98% 3256-57-3 25G $30 2026-05-19 Buy
Chem-Impex 02146 Nα-Z-L-asparagine 4-nitrophenyl ester ≥98% 3256-57-3 100G $110 2026-05-19 Buy
Product number Packaging Price Buy
260528 25g $333 Buy
CS-0113342 100g $808 Buy
02146 5G $18.5 Buy
02146 25G $30 Buy
02146 100G $110 Buy

Z-Asn-ONp Chemical Properties, Uses, Production

Chemical Properties

White to off-white powder

Uses

Z-Asn-ONp is an intermediate used in the synthesis of polyamine amide spider toxin NSTX-3, a potent glutamate receptor antagonist with potential as a neuroprotective agent.

Z-Asn-ONp Preparation Products And Raw materials

Raw materials

Preparation Products

Z-Asn-ONp Suppliers

Global Suppliers ( 65)
Supplier Tel Email Country ProdList Advantage
3B Pharmachem (Wuhan) International Co.,Ltd. 18930552037 3bsc@sina.com China 15813 69
Shanghai Hanhong Scientific Co.,Ltd. 021-54306202 13764082696 info@hanhongsci.com China 42917 64
Chemsky (shanghai) International Co.,Ltd 021-50135380 shchemsky@sina.com China 15350 60
NINGBO INNO PHARMCHEM CO.,LTD. 86-574-27787657 info@dearchem.com China 4607 58
Shanghai GL Peptide Ltd. +86-21-61263310 13764994101 fisherwang@glschina.com China 8059 55
Wuxi Asia Peptide Biotechnology Limited Company 0510-83583050 13771062561 willsun@peptide-search.com China 6713 58
Nanjing Peptide Biotech Ltd. 025-58361106-805 15951641583 zhao.xu@njpeptide.com China 9976 55
Kanghua (Shanghai) New Drug Development Co., Ltd. 021-61263370 18516560301 xingli@glbiochem.com China 5637 58
Shanghai Jifeng Biotechnology Co., Ltd. 021-61263377 15023907684 15800684150@163.com China 7994 58
Nextpeptide Inc +86-0571-81612335 +8613336028439 sales@nextpeptide.com China 19904 58

View Latest Price from Z-Asn-ONp manufacturers

Image Update time Product Price Min. Order Purity Supply Ability Manufacturer
Z-ASN-ONP pictures 2026-09-02 Z-ASN-ONP
3256-57-3
$1.20-34.00 1kg 99% Henan Fengda Chemical Co., Ltd
Z-ASN-ONP pictures 2025-04-04 Z-ASN-ONP
3256-57-3
1kg 98% 1Ton Henan Aochuang Chemical Co.,Ltd.
  • Z-ASN-ONP pictures
  • Z-ASN-ONP
    3256-57-3
  • $1.20-34.00
  • 99%
  • Henan Fengda Chemical Co., Ltd
  • Z-ASN-ONP pictures
  • Z-ASN-ONP
    3256-57-3
  • 98%
  • Henan Aochuang Chemical Co.,Ltd.
4-nitrophenyl (2S)-2-{[(benzyloxy)carbonyl]amino}-3-carbamoylpropanoate N-ALPHA-CARBOBENZOXY-L-ASPARAGINE P-NITROPHENYL ESTER N-CBZ-L-ASPARAGINE-P-NITROPHENYL ESTER N2-[(Benzyloxy)carbonyl]-L-asparagine 4-nitrophenyl ester (4-nitrophenyl) 4-amino-4-oxo-2-(phenylmethoxycarbonylamino)butanoate (4-nitrophenyl) 4-azanyl-4-oxo-2-(phenylmethoxycarbonylamino)butanoate Z-L-ASPARAGINE P-NITROPHENYL ESTER Z-L-ASPARAGINE 4-NITROPHENYL ESTER Z-ASPARAGINE-ONP 4-nitrophenyl N2-[(benzyloxy)carbonyl]-L-asparaginate NALPHA-Benzyloxycarbonyl-L-asparagine-4-nitrophenyl ester N-alpha-Benzyloxycarbonyl-L-asparagine p-nitrophenyl ester Z-L-Asn-ONp 4-amino-2-(benzyloxycarbonylamino)-4-keto-butyric acid (4-nitrophenyl) ester N-(Benzyloxycarbonyl)asparagine p-nitrophenyl ester N-(Benzyloxycarbonyl)-L-asparagine 4-nitrophenyl ester Nα-Z-L-asparagine 4-nitrophenyl ester≥ 98% CBZ-L-ASPARAGINE-4-NITROPHENYL ESTER BENZYLOXYCARBONYL-L-ASPARAGINE 4-NITROPHENYL ESTER BENZYLOXYCARBONYL-L-ASPARAGINE P-NITROPHENYL ESTER L-Asparagine, N2-[(phenylmethoxy)carbonyl]-, 4-nitrophenyl ester Z-ASN-ONP USP/EP/BP Nα-Z-L-asparagine 4-nitrophenyl ester CBZ-L-Asn-ONp Z-Asn-ONp 3256-57-3 3589-57-3 C18H17N3O7